Contd: querying underlying ontologies structure in LOD

Kingsley Idehen wrote:
> रविंदर ठाकुर (ravinder thakur) wrote:
>> hello friends
>>
>>
>> is there a way in LOD data to query for underlying ontology structure ?
>>
>>
>> eg. say i want to find some information about "population of 
>> australia" from LOD data. i can figure out that australia is a 
>> country by many different means but before resolving this query i 
>> would like to know from LOD if a country does have population 
>> property/predicate or not. this is to filter out queries like 
>> "pupulation of chairs". is there a way in LOD to query if the 
>> countries ( or its class type) has population attribute before moving 
>> ahead to find the answer to query ?
>>
>>
>>
>> thanks
>> ravinder
> Ravinder,
>
> Using LOD Cloud Cache instance at: <http://lod.openlinksw.com> I was 
> able to use pattern: Australia Population, to produce: 
> http://lod.openlinksw.com/fct/facet.vsp?cmd=load&fsq_id=3032  (I just 
> use "Type" and "Property" filtering on the initial results). You will 
> notice there are properties from DBpedia and Geonames data spaces 
> associated with the pattern :-)
>
Of course you could have also just gone to the "URI Lookup (by Label)" 
and then types in: population. The result would be an auto-complete 
style list of all Classes, Prorperties, and Instance Data URIs that have 
pattern: population, in their labels :-)



-- 


Regards,

Kingsley Idehen       Weblog: http://www.openlinksw.com/blog/~kidehen
President & CEO 
OpenLink Software     Web: http://www.openlinksw.com

Received on Sunday, 14 June 2009 16:25:37 UTC